1bdvet

Mine is once year, or 30%, what ever comes first.

scvette2011

I am of the same opinion... Around 6k on mine and plan to change it out next Saturday. Oil Life Monitor says 43%. It's my daily driver, 60 miles round trip 5 days per week and then weekend play time, so my gets changed pretty regularly.

Tide Will Roll!

Right now my OLM is at 59% and the oil has just over 5000 miles on it.
The last two times it was changed at 47% and 45% which was way too early. I PLAN on trying to wait much longer this time

My 03 Silverado has a OLM on it and I have never used it, always changed between 3.5K and 5K(dino oil)
I am going to switch the truck to M1 and extend the OI on it also

Wifes car is a Nissan Altima Coupe 3.5SR, they recommend OI of 3,750 miles...

Bert

Roll Tide

LSD 2005

I use the DIC and the look of the oil on the dip stick.

su8pack1

5000 miles or once a year for me.

Rogers 07

I let the monitor run down to about 15-20%, this usually gets me between 7-8000 miles (Mines a DD) so the oil and filter get changed about 3 times a year !! The oil has always been reasonably clean when changed, and the inside of the engine is spotless, I removed the valve covers at 75000 miles to upgrade the springs and rocker arms etc and it looked like brand new, No wear on any of the factory rockers or components at all. !!! The engine has well over 100000 miles now and has the same compression, oil pressure and power it did when it was brand new. It does use about a 1/2 quart between changes but then, it always did !!!

CessnaDriver

A year or when the OLM says, that is exactly what the manual tells you and it's based on a ton of research over the years. So early changers are doing it for emotional reasons and wasting oil, time, money to "feel" better. There is no logical reason to do early changes unless your modifed or doing something unusual.

Bill Dearborn

Oil life remaining will change based on how you use the car so the number of miles won't be the same between two cars with the same percentage remaining. Hard track usage where the oil temp runs in the 260 degree range for most of the day drops the percentage faster than if you are driving in heavy traffic and even faster than if you are driving on the highway. Lots of engine starts with short driving distances will reduce the percentage quicker as well. The OLM is pretty accurate but the Owner's Manual says change when it gets to zero or when mileage gets to 15K or when a year is up. Which ever comes first. I have never even gotten close to the 15K number, have gotten into the 20% area as far as oil life but then changed because the once per year service was due. Typically, I see about 4K to 5K miles per oil change.

Bill

airbill2

I don't let mine go past 6000 miles. That's around 30 to 35% for me. I drive it about 10 to 12k per year.

Bandit1

Every 5k miles with AMSOIL.

Ketchum

I have a lady friend with a 2006 Colbalt. Alloys, upgraded radio,cabin filter and such. Bought new. Real nice little car. She drives through Atlanta traffic twice a day 5 days a week. 88 miles a day. Its fixing to hit 200,000. Nothing but OLM and Quick lubes. I took a flashlight and looked in the oil fill hole. Minor tarnish was all. It runs and sounds as good as when it had 5000 on it. She never keeps track of mileage on oil. Just runs the OLM to 10% and starts planning trip to car wash and oil change. It has been a excellant commuter car.

rtruman

bought a 2008 z06 corvette with 200 miles on it changed it this year first time .

Ketchum

And why so long? How many miles on it?

okie08vette

We have a Chevy Dealer here in Oklahoma City that has been running a special on oil changes, $9.99 using Mobil 1. So I am thinking of changing mine every month.

Jim2003

After 10 years of owning vettes, I cease to be amazed at the owners who defy logic and common sense about oil changes. Our engines run lean therefore they do not harm the oil with gas. Our engines use M1 which is far superior to Dino oil. The engineers designed a system to monitor the oil with variables for temp, rpms, etc. and still people feel the need to change at 3K or 5K or 6K. My question is why buy a refined car like ours and then not take advantage of the monitoring system? If you like wasting money on oil and filter then go for it, but it is not necessary nor does it help the car.

jimmie jam

I drove my car less than 250 miles last year. No way am I changing the clean oil that's in it with 98 percent on the OLM. Flame suit is just back from the dry cleaners and fits fine.

MobyDickDog

I don't worry about the oil. But I sure do give that dinky oil filter thoughts. 5000 miles max for me and the oil goes with the old filter.

HummelS

Mine's an "around town" DD with occasional highway jaunts. It'll tell me 10% after about 6K miles, because it gets 4-6 low-mile duty cycles almost every day. It will also ding me after one year. When I was commuting in my C5, it would typically be 8-10K miles between changes.

HOXXOH

I won't ask why so low miles, but I agree about no change at this time.

The calendar year is for people who forget what the mileage was at the last change.

09REAPER

I change mine every 2000 miles just to keep it fresh! I also drive a little hard from time to time so I like to know I'm full and fresh on oil!!!